About twenty or thirty percent of them have become twins, they are very happy, think I can save trouble, I have two children at once, I will solve the pain of the next pregnancy in October, but in fact, the abortion rate of twins, premature birth rate, are much higher than single pregnancy.
If you conceive twins through IVF, you may be happy for mom and dad, why do some doctors still recommend that we have to lose our fetus?
In order to ensure that in vitro fertilization - embryo transfer has a certain success rate, such as five days of blastocysts, it has undergone some screening, may have less blastocyst number, but the success rate of transferring a blastocyst will increase, but if it is a three-day embryo, it may not have undergone more tests, even if it is a better quality embryo, its success rate is not so high.
We now have a three-day embryo implantation, the average such an implantation rate, that is, the percentage of this seed that can grow into the mother's womb, is only about twenty or thirty percent, so in order to ensure a certain success rate, we generally in the three-day embryo stage, we are transferring two, like the management regulations we formulated in 2003, when we said that there are no more than three.
Like other countries, such as the United States, they will be younger patients under 35 years old is one or two, relative to 40 years old may indeed be not very good quality, they allow multi-migration, but we found that in fact, the success rate of multi-migration is not a significant increase, and the miscarriage rate will increase. So after years of practice, the embryos we are now proposing to everyone to transfer for three days are two, if it is a blastocyst, it is one, which guarantees a certain success rate, and the multiple birth rate is not too high.
The twins you just talked about, that is, everyone is very happy, about twenty or thirty percent of them have become twins, they are very happy, think I can save trouble, I have two children at once, it will solve the pain of the next pregnancy in October, but in fact, the abortion rate of twins, premature birth rate, are far higher than single pregnancy.
Because the mother's uterus is such a big place, to grow in the abdominal cavity, so when two children go to conceive together, the mother's burden is relatively heavy, so the pregnancy period will also be prone to high blood pressure, diabetes and other problems! The preterm birth rate is popularly said that the mother's womb cannot stand up, and it is premature, but in fact, the scientific mechanism here is still very complicated.
For the fetus, the two fetuses have to compete for the nutrition in the mother's womb, the position of the placenta is easy to have problems, in this process, the nutrition that the two children can get, that is, the mother's blood circulation is also different, so it is very easy to have some problems.
In addition to premature birth, the earlier is the miscarriage, it is difficult to have a healthy child, this child in the process of development, because of some of the nutritional imbalance or umbilical cord entangled together, etc., will also occur the corresponding nervous system development, blood transfusion syndrome and other corresponding problems, so the probability of abnormalities, the corresponding or increased a lot, so we will reduce the number of embryo transfers as an important part of assisted reproduction, but also hope that our couples of childbearing age can understand, It is best to have a healthy child at a time, otherwise the pain caused by premature birth and miscarriage to women, especially the quality of newborns born, still has a great impact on the family, and also has an impact on the quality of our nation and future reproduction.
So to this height, we are all developing some standards, to reduce everyone's expectations for the concept of success, but to increase the cumulative success rate, so it is still necessary to reduce the number of embryos transferred, and then if you are pregnant with twins, according to the patient's situation, we recommend doing a fetal reduction surgery, so as to ensure the healthy growth of a child, avoid abnormalities in the back, there is no power to solve it! The current fetal reduction technology is still relatively safe, in fact, it is similar to the egg retrieval technology, because of the continuous development of egg retrieval technology, so the fetal reduction itself is also a mechanical treatment, which has no impact on another fetus and for the mother's whole body.
Whether it's medical staff, or our men and women, we do so much work to conceive a healthy baby! So I still hope you can understand.
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